ICO Image Resizer
Resize your ico (Icon File) images directly in your browser. Lock the aspect ratio, set exact dimensions, and download in the original format. No files leave your device.
More Tools for ICO
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Explore other tools available for this format.
View ICO Files
Open and inspect ICO images directly in your browser.
ICO Metadata Editor
View and edit EXIF and other metadata for ICO files.
Convert ICO
Convert ICO images to other formats like WEBP, PNG, JPEG and more.
Compress ICO Images
Reduce the file size of ICO images in your browser. Output to JPEG or WebP.
Crop ICO Images
Crop ICO images to any region in your browser. Draw a selection, lock aspect ratio, and download instantly.
Rotate ICO Images
Rotate and flip ICO images in your browser. Choose 90°, 180°, 270°, or flip horizontally and vertically.
What is ico?
About ICO
Icon File (.ico) is a popular image format known for its supports multiple resolutions and transparency in a single file. ICO is a standard format for storing icon images, commonly used for websites, applications, and operating systems, with built-in transparency and multi-resolution support.
FAQ
Common questions
We've got answers.
You can resize any format that supports both decoding and encoding, including JPEG, PNG, WebP, BMP, GIF, TIFF, QOI, TGA, EXR, HDR, ICO, PNM, and Farbfeld. The output is saved in the same format as the input.
No. The resizer preserves the original file format. A JPEG stays a JPEG, a PNG stays a PNG. If you need a different format, use the converter first.
Scaling down generally looks fine. Scaling up will soften the image since there is no lossless way to add detail that was not there originally. The resizer uses Lanczos3 filtering for the best possible result.
When the lock is active, changing the width automatically updates the height to maintain the original proportions, and vice versa. Unlock it to set width and height independently.
No. All processing happens in your browser using WebAssembly. Your images never leave your device.